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Oval|Lab Grown|IGI

3.99ct E FL Oval Lab Grown Diamond

ID • E/FL • IGI LG784644621

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG784644621

Diamond specifications and retailer prices

From $1,850 USD
As of October 29, 2026
Save $13,850 USD (88%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $15,700 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.99ct lab-grown oval diamond

This 3.99ct lab-grown oval sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG784644621 or 784644621. Listed at 14 retailers as of October 29, 2026, with prices from $1,850 to $15,700, a $13,850 spread on the same certified stone. Brilliant Earth lists it at $15,700. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.99
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784644621
Dimensions12.62 × 8.98 × 5.43 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
12.62 mm8.98 mm3.99 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784644621
Side View
Table 58.0%Crown 36.5°Girdle: STK-THKPavilion 39.3°Culet: NoneDepth 60.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $15,700 USD|Low: $1,850 USD|High: $18,720 USD|Avg: $6,341 USD|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 6$1,850 USD
Retailer 8$1,898 USD
Retailer 7$2,739 USD
Retailer 10$3,075 USD
Retailer 11$3,204 USD
Retailer 4$3,400 USD
Retailer 12$4,221 USD
Retailer 3$4,840 USD
Retailer 2$5,511 USD
Retailer 5$6,445 USD
Retailer 9$10,310 USD
Brilliant Earth$15,700 USD

31 data points across 12 retailers

14 retailers$1,850 USD to $15,700 USD

A
Cheapest Retailer
-
$1,850 USD
A
Retailer 2
-
$1,898 USD
View
A
Retailer 3
-
$2,414 USD
View
Price last confirmed 27 days ago
A
Retailer 4
-
$2,736 USD
View
Price last confirmed 33 days ago
A
Retailer 5
-
$2,739 USD
View
A
Retailer 6
-
$3,075 USD
View
A
Retailer 7
-
$3,204 USD
€3,051 EUR
View
B+
Retailer 8
-
$4,221 USD
View
B+
Retailer 9
-
$4,425 USD
View
Price last confirmed 29 days ago
B+
Retailer 10
-
$4,840 USD
View
B+
Retailer 11
-
$5,511 USD
£4,339 GBP
View
B+
Retailer 12
-
$6,445 USD
View
B
Retailer 13
-
$10,310 USD
View
Most Expensive
B
Brilliant Earth
19021182Y · Oct 29
$15,700 USD
View
13 more retailers have this diamond
Prices start from $1,850 USDSave up to $13,850 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
3.99ct Oval
$1,850 USD